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Anterix Inc. planned insider sales

In the last twelve months insiders at Anterix Inc. filed 17 Form 144 notices of planned sales, 374,745 shares worth $25.8 million at the time of filing, from 10 sellers. The latest, filed 9 October 2026: Elena Marquez (officer), 4,981 shares worth $400,607, planned for around 9 October 2026 through Morgan Stanley Smith Barney LLC Executive Financial Services.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
9 October 2026Elena MarquezOfficer4,981$400,6079 October 20264,981 shares from 9 October 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock; Stock Option ExerciseForm 144
21 September 2026Scott LangOfficer, Director15,000$1.2 million21 September 202615,000 shares from 21 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercised SharesForm 144
10 September 2026Heather MartinOfficer8,064$678,99810 September 20268,064 shares from 10 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
8 September 2026Gena L AsheOfficer4,357$372,2628 September 20264,357 shares from 8 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock; Stock Option ExerciseForm 144
25 August 2026Christopher Guttman-McCabeOfficer23,439$2.2 million25 August 202623,439 shares from 25 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesStock Option ExerciseForm 144
24 August 2026Thomas KuhnDirector10,000$888,52724 August 202610,000 shares from 24 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesStock Option ExerciseForm 144
14 August 2026Scott LangOfficer, Director35,057$3.2 million14 August 202635,057 shares from 14 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercised SharesForm 144
17 June 2026Elena MarquezOfficer4,291$341,13417 June 20264,291 shares from 17 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock; Stock Option ExerciseForm 144
16 June 2026Yazdi MahvashDirector7,000$560,00016 June 20267,000 shares from 16 June 2026Charles Schwab CorpRestricted Stock UnitForm 144
15 June 2026Gena L AsheOfficer17,711$1.4 million15 June 202617,711 shares from 15 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock; Stock Option ExerciseForm 144
15 June 2026Christopher Guttman-McCabeOfficer122,852$10.0 million15 June 202691,437 shares from 15 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesStock Option ExerciseForm 144
17 April 2026Ryan L GerbrandtOfficer25,000$1.1 million17 April 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesStock Option ExerciseForm 144
16 April 2026Ryan L GerbrandtOfficer26,889$1.1 million16 April 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesStock Option ExerciseForm 144
3 March 2026Gena L AsheOfficer12,427$449,5553 March 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesStock Option ExerciseForm 144
2 March 2026Ryan L GerbrandtOfficer22,595$837,6242 March 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesStock Option ExerciseForm 144
19 February 2026Ryan L GerbrandtOfficer28,518$975,56119 February 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
18 November 2025Gena AsheOfficer6,564$139,09118 November 20256,564 shares from 18 November 2025Merrill LynchStock BonusForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?